KerBlaster

After defeating Midge-Mong in Blackburn Cove, there is a chance he will drop the Legendary Assault Rifle, the KerBlaster. But there's also a minuscule chance of it dropping from any loot source. It's unique in that after its 4-bullet consuming shot, a grenade will be released.

Midge-Mong himself can be found in Blackburn Cove in the Southern Shelf]] and is part of the side quest Symbiosis.